Leo Aloysius Cullum (January 11, 1942 – October 23, 2010) was an American cartoonist, one of the more frequent contributors to The New Yorker with more than 800 gag cartoons published.

Though the missions over Laos were not officially acknowledged, Cullum was baffled by the need for secrecy, saying "the North Vietnamese certainly knew it wasn't the Swiss bombing them".

His first successful entry was published on January 3, 1977, and featured a man wearing a robe at an office desk in a room filled with chickens.

His published books include collections about doctors and birds, with the respective punny titles of Suture Self and Tequila Mockingbird.

[1] A resident of Malibu, California, Cullum died of cancer at the age of 68 on October 23, 2010, at Cedars-Sinai Medical Center in Los Angeles.